Is the brain quantum?
As of 06:46 UTC on 3 Jun 2026, Manifold prices “Is the brain quantum?” at 18%. The market has no Manifold-reported volume in the last 24 hours. pdata.world compares it with 24 related events on Manifold, Kalshi and Polymarket.
https://en.wikipedia.org/wiki/Quantum_mind Resolves positively if we discover that non-classical phenomena are required in order for the human brain to function as it does. An attempt at a more rigerous definition, which is subject to change if I realize a flaw in it: Program a supercomputer with the classical laws of physics. Program a second one with quantum mechanics. Tell them both to simulate a human brain on a molecular level. If the classical one is unable to arrive at anything resembling human behavior, but the quantum one is, this market will resolve YES. If it turns out that all biology requires quantum effects, and even a bacterium wouldn't function in a classical simulation, then that isn't sufficient to resolve this YES.
